Improvement in plows



",PEIERS. PHOTO-LlYl-IoaRAPHER. WASHINGTON D C UNITED STATES PATENT OFFICE.

GEORGE W. HUNT, OF

MUSCATINE, IOVA;

IMPROVEMENT- IN FLOWS.

' the city and county of Muscatine, and State of Iowa, have inventedA a new and useful Improvement in Plows; and 1 doherebydeclare that the following is a full, clear, and exact description of the samehreference being had to the yaccompanying drawings, forming a par of this specification, in Which- Figure l is a side elevation and partial section ot` myimproved plow. Fig. 2 is a plan or top view of the same. Fig. 3 is a vertical transverse section of the same.

Similar letters of reference in each of the several figures indicate corresponding parts.

My invention consists, iirst, in the arrangementof a vertical coupling and adjusting pin, which has that portion which passes through the beam round and that portion which passes through the axle square, in combination 'with a diagonal adjusting-bar, a conneetin g-rod, and a vertical lever. By this arrangement the beam, withits attachments, isallowed achance to play up and down, according to the undulations of the soil on the landside of the plow, independently of the axle, and the axle, with its wheels, is allowed a chance, when itis desired to turn a corner, to swing round horizontally independently of the beam.

My invention consists, second, in the arrangement of a long slot in the axle with an upper and under slotted sliding plate and the coupling and adjusting pin. By this arrangement the plow can be set so as to plow7 to a greater or less depth and yet always have its sole resting square upon the bottom of the furrow.

My invention consists, third,in the arrangement of the beam, slotted axle, coupling-pin, slotted plates,diagonal connecting-rod, adjusting-bar lever, drivers seat, treadle, plow, horizontal rotary landside-wheel, and rotary colter, all in the manner described, and for use together.

To enable others skilled in the art to make and use my invention, I will proceed to denear its frontend, on an axle, D, of two propeiling-wheels7 E E', ofdifferent diameters, and has its rear end supported by a third wheel E2, as shown.

F is the plow. It is arranged about midway of the beam,as usual. rThis plow has no landside-bar attached to it, but has a wheel, G, arranged on a vertical shaft, placed behindin such position that its circumference bears against the land side ofthe furrow as the plow moves through the earth. This horizontal revolving wheel answers as the landside and avoids friction,'and also steadies the plow. H is the revolving colter arranged in front of the plow.

I is the vertical coupling-pin, which couples the axle and beam together. This pin is made round from d to b, and from b to 0 it is square. The upper end of this piu is made round, and has a screw-thread cut on it. This pin passes up loosely through a round hole, i', in the beam, and an oblong slot, w, in the axle, and is confined in place from vertical play by means of a shoulder, d, a head, e, and a nut, J, which latter screws on its upper end. It will be observed that the pin extends up some distance above the top of the axle. The object of this is to allow the axle, with ils attachments, to move :up and down on the square part of it, accordingly as the undulations of the soil operate upon the landside propelling wheel E', and thus avoid lifting the plow from its set position.

K is a metal tube surrounding the exposed portion of thecoupling-pin. Thistubeprotects the screw-thread from injury as the axle moves up and down over it.

L L are two slotted plates, one arranged on I top and the other on the bottom of the axle. Set-screwsff pass through the axle and slots gg of the plates. The coupling-pin also passes through square holes in said plates, so that it has no lateral movement independently of the plates. Now, suppose the plow is adjustedby the screw and nut of the coupling pin to run deeper, or its point is pitched down and its rear thrown up, all that has to be done to have its sole run horizontal from point to rear is to shift the upper plate to the molti-board side and the under plate to the land side, for by thus shifting the plates the coupling-pin is caused to incline, and in doing so the axle is not affected, but the beam is caused to take such a position as will throw the base ofthe plow horizontal.

M is a treadle pivoted to the front of the beam, and connected by a link, l, to the rear of the axle, and extended back tothe drivers seat. This treadle enables the driver with his foot to raise and lower the front end ot' the beam and the plow, as occasion may require.

N is a connecting` rod hinged at m to the landside end of the axle, and extended back to near the rear end of the beam and there pivoted to a vertical hand-lever, O, of the beam, as shown.

P is an adjusting bar, on which the lever moves back and forth. rIhis bar has a seriesof holes, n, formed in it, and the lever has a spring stop-pimp, which falls into said holes. With this arrangement. the plow can readily be turned 'round a corner, for by moving the lever f backward the connecting rod exerts a thrust forward, and consequently the axle turns on theround part ofthe coupling-pin and assumes, with the propelling-wheel, the position shown in redlines. To bring the axle and wheels backlto the position shown in black lines, the lever is moved backward on the-bar P.

What I claim 4as my invention, and desireto sec'ureby Letters Patent, is-

1. The arrangement of a vertical coupling and adjusting pin, I, which has that portion which passes through the beam round and that portion which passes through the axle square, in combination with a diagonal adj usting-bar, P, a'connecting-rod, N, and a vertical lever, 0, substantially as and for the purposes setforth.

2. The arrangement of a long slot, tu, in the axle with an upper and under slotted sliding plate, L L ,and the coupling and adjusting pin I, substantially as and for thc purposes set forth.

3. The arrangement. of the beam A, slotted axle D, coupling-pin l, slotted plates L L', di-

agonal connecting-rod N, adjusting-bar P, le-

ver O, `drivers seat G, treadle M, plow F, horizontal rotary landside-wheel G, and rotary col- 'ter H, in the manner and forthe purposes set forth.

The above 'specieation of "my improved plow signed by me this 16th day ot' January, 1860.

G. W. HUNT.

Witnesses:

GOODWIN Y. AT LEE, R, W. FENWIGK. 

